Among people experience migraine headaches, some experience what doctors call"common" migraines, whereas others experience "classical" migraines. Siblings and spouses of common migraine sufferers are themselves twice as likely as the general population to experience common migraines. Siblings of classical migraine sufferers are four times more likely than the general population to experience classical migraines, whereas spouses of classical migraine suferers are no more likely than the general population to experience such headaches.
The information above provides the most support for which of the following hypotheses?
(A) Susceptibility to classical migraines is more dependent on hereditary factors than is susceptibility to common migraines. (B) Unmarried adults are more likely to suffer from classical migraines than they are to suffer from common migraines. (C) People who do not experience migraine headaches are unlikely to have spouses who are migraine headache sufferers. (D) Children of people who suffer from common migraines are more likely than the general population to experience a common migraine. (E) Between one-quarter and one-half of the general population suffer from either common or classical migraine headaches.
When I started to read this stimulus, I can tell that the author wants you to make distinction between siblings and spouse. The first sentence doesn't really help but the key to this question is the last sentence. There's a distinction and comparison between siblings of classical migraine sufferers and spouse of classical migraine sufferers. Author posits that siblings of classical migraine sufferers are four times more likely than general population to experience classical migraine. On the other hand, spouse of classical migraine sufferers are no more likely than general population to experience classical migraine. If you understand this then it should be clear why A is correct. A is synonymous to the last sentence of the passage, the author just puts it in a different or perhaps more convoluted way to catch the test takers.
Why D is incorrect? The prompt only talks about siblings (brother & sister) and spouses (husband/wives) of the migraine sufferers. The author never talk about children of migraine sufferers, therefore choice D could be true but not must be true. We need more information. However, answer choice A must be true, this is why A is correct.
Anon
Re: CR: common vs. classical migraines [#permalink]
Among people experience migraine headaches, some experience what doctors call"common" migraines, whereas others experience "classical" migraines. Siblings and spouses of common migraine sufferers are themselves twice as likely as the general population to experience common migraines. Siblings of classical migraine sufferers are four times more likely than the general population to experience classical migraines, whereas spouses of classical migraine suferers are no more likely than the general population to experience such headaches.
The information above provides the most support for which of the following hypotheses?
A)Susceptibility to classical migraines is more dependent on hereditary factors than is susceptibility to common migraines. B)Unmarried adults are more likely to suffer from classical migraines than they are to suffer from common migraines. C)People who do not experience migraine headaches are unlikely to have spouses who are migraine headache sufferers. D)Children of people who suffer from common migraines are more likely than the general population to experience a common migraine. E)Between one-quarter and one-half of the general population suffer from either common or classical migraine headaches.
A is very straightforward here. Since classical migraine affects the siblings too, it shows that it's genetically linked.
vd
Re: CR: common vs. classical migraines [#permalink]
Among people experience migraine headaches, some experience what doctors call"common" migraines, whereas others experience "classical" migraines. Siblings and spouses of common migraine sufferers are themselves twice as likely as the general population to experience common migraines. Siblings of classical migraine sufferers are four times more likely than the general population to experience classical migraines, whereas spouses of classical migraine suferers are no more likely than the general population to experience such headaches.
The information above provides the most support for which of the following hypotheses?
A)Susceptibility to classical migraines is more dependent on hereditary factors than is susceptibility to common migraines. B)Unmarried adults are more likely to suffer from classical migraines than they are to suffer from common migraines. (stem does not differentiate unmarried and married adults so this is not relevant) C)People who do not experience migraine headaches are unlikely to have spouses who are migraine headache sufferers. (stem does not talk about it) D)Children of people who suffer from common migraines are more likely than the general population to experience a common migraine. (again the stem does not say anything like this) E)Between one-quarter and one-half of the general population suffer from either common or classical migraine headaches. There is nothing in the stem from which we can infer this
IMO A is the answer . i arrived at my answer by chosing POE
_________________ The world is continuous, but the mind is discrete
bhatiagp
Re: CR: common vs. classical migraines [#permalink]
Thank you so much for the explanation. In fact my mistake came from the word siblings. I was not very sure about the meaning and though that it includes the children as well as some other members of the family of one person. Now it's very clear for me why the answer is A. Thanks again!
RGM
Re: CR: common vs. classical migraines [#permalink]
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This is a straight forward answer, isn't it? 
